A LABORATORY STUDY OF THE VARIABLES THAT AFFECT PAVEMENT DEFLECTION

PRELIMINARY RESULTS OF FIELD STUDIES INDICATED THAT LOW MODULUS OF ELASTICITY CONCRETE PAVEMENT DEFLECTED SUBSTANTIALLY LESS THAN HIGH MODULUS OF ELASTICITY CONCRETE PAVEMENT. THIS RESULT IS CONTRARY TO ESTABLISHED THEORY. FOR THIS REASON, A LABORATORY MODEL WAS CONSTRUCTED IN ORDER THAT CERTAIN VARIABLES COULD BE STUDIED. THE VARIABLES CONSIDERED WERE LOAD, SURFACE THICKNESS, SUBGRADE AND SLAB SURFACE MATERIALS WITH VARYING MODULUS OF ELASTICITY. SPECIAL EMPHASIS WAS PLACED ON THE STUDY PERTAINING TO PAVEMENT SURFACE MATERIALS WITH VARYING MODULUS OF ELASTICITY. ADDITIONALLY, THE MODEL STUDY RESULTS FOR ALL VARIABLES CORRELATE WITH THEORY, WITH THE EXCEPTION OF THE MODULUS OF ELASTICITY. THE STUDY ALSO INDICATES THAT A MODEL IS A USEFUL TOOL FOR PRELIMINARY STUDY OF VARIABLES WHICH ARE IMPORTANT CONSIDERATIONS IN HIGHWAY PAVEMENT DESIGN.

• Supplemental Notes:
  • Rept No 46-6, 37 PP, 18 FIG, 1 TAB, 7 REF, 1 APP
• Corporate Authors:

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701
• Authors:
  • McCullough, B F
  • Mays, I K
• Publication Date: 1966-8

Subject/Index Terms

• TRT Terms: Concrete pavements; Deflection; Laboratory studies; Loads; Mathematical models; Modulus of elasticity; Pavements; Slabs; Subgrade materials; Surface course (Pavements); Thickness
• Uncontrolled Terms: Models
• Old TRIS Terms: Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206626
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Jul 21 1994 12:00AM